OutBack Power Radian Series Installation guide

Brand: OutBack Power

Model: Radian Series

Category: Chassis components

Type: Installation guide

Radian Series Inverter/Charger

GS8048

Installation Manual

About OutBack Power Technologies

OutBack Power Technologies is a leader in advanced energy conversion technology. OutBack products include

true sine wave inverter/chargers, maximum power point tracking charge controllers, and system communication

components, as well as circuit breakers, accessories, and assembled systems.

Contact Information

Address:

Corporate Headquarters

17825 – 59

Avenue N.E.

Suite B

Arlington, WA 98223 USA

European Office

Hansastrasse 8

D-91126

Schwabach, Germany

Telephone:

+1.360.435.6030

+1.360.618.4363 (Technical Support)

+1.360.435.6019 (Fax)

+49.9122.79889.0

+49.9122.79889.21 (Fax)

Email:

Support@outbackpower.com

Website:

http://www.outbackpower.com

Disclaimer

UNLESS SPECIFICALLY AGREED TO IN WRITING, OUTBACK POWER TECHNOLOGIES:

(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER

INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.

(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT,

CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF

ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.

Warranty Summary

OutBack Power Technologies Inc. warrants that the products it manufactures will be free from defects in

materials and workmanship for a period of five (5) years subject to the conditions set forth in the warranty detail,

found in the Radian Series Inverter/Charger Operator’s Manual.

OutBack Power Technologies cannot be responsible for system failure, damages, or injury resulting from

improper installation of their products.

Notice of Copyright

Trademarks

OutBack Power and the OutBack Power logo are trademarks owned and used by OutBack Power Technologies,

Inc. The ALPHA logo and the phrase “member of the Alpha Group” are trademarks owned and used by Alpha

Technologies Inc. These trademarks may be registered in the United States and other countries.

Date and Revision

October 2013, Revision B

Part Number

900-0021-01-00 Rev B

900-0021-01-00 Rev B 1

Important Safety Instructions

READ AND SAVE THESE INSTRUCTIONS!

This manual contains important safety instructions for the Radian Series Inverter/Charger. Read all

instructions and cautionary markings on the inverter and on any accessories or additional equipment

included in the installation. Failure to adhere to these instructions could result in severe shock or

possible electrocution. Exercise extreme caution at all times to prevent accidents.

Audience

These instructions are for use by qualified personnel who meet all local and governmental code

requirements for licensing and training for the installation of electrical power systems with AC and DC

voltage up to 600 volts.

Symbols Used

Symbol

Description

Ground

AC Current

DC Current

Sine Wave

WARNING: Hazard to Human Life

This type of notation indicates that the hazard could be harmful to human life.

CAUTION: Hazard to Equipment

This type of notation indicates that the hazard may cause damage to the equipment.

IMPORTANT:

This type of notation indicates that the information provided is important to

the installation, operation and/or maintenance of the equipment. Failure to

follow the recommendations in such a notation could result in voiding the

equipment warranty.

Important Safety Instructions

2 900-0021-01-00 Rev B

Definitions

The following is a list of initials, terms, and definitions used with this product.

Table 1 Terms and Definitions

Term

Definition

12V AUX

Auxiliary connection that supplies 12 Vdc to control external devices.

Alternating Current; refers to voltage produced by the inverter, utility grid, or generator

AGS

Advanced Generator Start

CSA

Canadian Standards Association; establishes Canadian national standards and the

Canadian Electrical Code, including C22.1 and C22.2

Direct Current; refers to voltage produced by the batteries or renewable source

DVM

Digital Voltmeter

ETL

Electrical Testing Laboratories; short for the company ETL Semko; refers to a certification

issued by ETL to OutBack products indicating that they meet certain UL standards

GFDI

Ground Fault Detector Interruptor; a safety device for PV systems

GND

Ground; a permanent conductive connection to earth for safety reasons; also known as

Chassis Ground, Protective Earth, PE, Grounding Electrode Conductor, and GEC

Grid-interactive,

grid-intertie, grid-tie

Utility grid power is available for use and the inverter is a model capable of returning

(selling) electricity back to the utility grid

GSLC

GS Load Center; the wiring box for the Radian (GS) inverter

HBX

High Battery Transfer; a function of the MATE3

HUB

A line of OutBack communications manager products

IEEE

Institute of Electrical and Electronics Engineers; refers to a series of standards and

practices for the testing of electrical products

LBCO

Low Battery Cut-Out; set point at which the inverter shuts down due to low voltage

MATE3

An OutBack system display, used for monitoring, programming and communicating

with the inverter

NEC

National Electric Code

NEU

AC Neutral; also known as Common

Off-grid

Utility grid power

is not

available for use

Photovoltaic

RELAY AUX

Auxiliary connection that uses switch (relay) contacts to control external devices.

RTS

Remote Temperature Sensor; accessory that measures battery temperature for charging

Important Safety Instructions

900-0021-01-00 Rev B 3

Table 1 Terms and Definitions

Term

Definition

Split-phase

A type of utility electrical system with 2 “hot” lines that are 120 Vac with respect to

neutral and 240 Vac between the “hot” lines; common in North America

System display

Remote interface device (such as the MATE3), used for monitoring, programming and

communicating with the inverter; also called “remote system display”

Underwriters Laboratories; refers to a set of safety standards governing electrical

products

Utility grid

The electrical service and infrastructure supported by the electrical or utility company;

also called “mains”, “utility service”, or “grid”

General Safety

WARNING: Limitations on Use

This equipment is NOT intended for use with life support equipment or other medical

equipment or devices.

CAUTION: Equipment Damage

Only use components or accessories recommended or sold by OutBack Power

Technologies or its authorized agents.

IMPORTANT:

Do not attempt to install this equipment if it appears to be damaged in any way. See

the Warranty section for instructions on returning the equipment.

Personal Safety

WARNING: Personal Injury

 This equipment weighs in excess of 125

lbs (

57 kg). Use safe lifting techniques

when lifting this equipment as prescribed by the Occupational Safety and Health

Association (OSHA) or other local codes.

 Use standard safety equipment such as safety glasses, ear protection, steel-toed

safety boots, safety hard hats, etc., as prescribed by the Occupational Safety and

Health Association (or other local codes) when working on this equipment.

 Use standard safety practices when working with electrical equipment (e.g., remove

all jewelry, use insulated tools, wear cotton clothing, etc.).

 Never work alone when installing or servicing this equipment. Have someone

nearby that can assist if necessary.

Important Safety Instructions

4 900-0021-01-00 Rev B

Inverter Safety

WARNING: Lethal Voltage

 Review the system configuration to identify all possible sources of energy. Ensure

ALL sources of power are disconnected before performing any installation or

maintenance on this equipment. Confirm that the terminals are de-energized using

a validated voltmeter (rated for a minimum 1000 Vac and 1000 Vdc) to verify the de-

energized condition.

 Do not perform any servicing other than that specified in the installation

instructions unless qualified to do so, or have been instructed to do so by OutBack

Power Technologies Technical Support personnel.

WARNING: Burn Hazard

Internal parts can become hot during operation. Do not remove the cover during

operation or touch any internal parts. Be sure to allow sufficient time for internal parts

to cool down before attempting to perform any maintenance.

WARNING: Fire Hazard

 Do not place combustible or flammable materials within 12 feet (3.7 m) of

the equipment.

 This product contains relays with moving parts and is not ignition-protected.

 Ensure AC, DC, and ground cable sizes conform to local codes. See pages 24

through 26 for minimum size requirements. Ensure all conductors are in good

condition. Do not operate the unit with damaged or substandard cabling.

CAUTION: Equipment Damage

When connecting cables from the inverter to the battery terminals, ensure the proper

polarity is observed. Connecting the cables incorrectly can damage or destroy the

equipment and void the product warranty.

CAUTION: Equipment Damage

 Thoroughly inspect the equipment prior to energizing. Verify that no tools or

equipment have been inadvertently left behind.

 Ensure clearance requirements are strictly enforced. Keep all vents clear of

obstructions that can prevent proper air flow around, or through, the unit.

 Sensitive electronics inside the equipment can be destroyed by static electricity. Be

sure to discharge any static electricity before touching the equipment and wear

appropriate protective gear.

Important Safety Instructions

900-0021-01-00 Rev B 5

Battery Safety

WARNING: Explosion, Electrocution, or Fire Hazard

 Use the battery types recommended by OutBack Power Technologies. Follow the

battery manufacturer’s recommendations for installation and maintenance.

 Ensure the cables are properly sized. Failure to size the cables properly can result in

a fire hazard.

 Ensure clearance requirements are strictly enforced around the batteries.

 Ensure the area around the batteries is well ventilated and clean of debris.

 Never smoke near, or allow a spark or flame near, the batteries.

 Always use insulated tools. Avoid dropping tools onto batteries or other

electrical parts.

 Keep plenty of fresh water and soap nearby in case battery acid contacts skin,

clothing, or eyes.

 Wear complete eye and clothing protection when working with batteries. Avoid

touching bare skin or eyes while working near batteries.

 If battery acid contacts skin or clothing, wash immediately with soap and water. If

acid enters the eye, immediately flood it with running cold water for at least

20 minutes and get medical attention as soon as possible.

 Never charge a frozen battery.

 Insulate batteries as appropriate against freezing temperatures. A discharged

battery will freeze more easily than a charged one.

 If a battery must be removed, always remove the grounded terminal from the

battery first. Make sure all devices are de-energized or disconnected to avoid

causing a spark.

 If a remote or automatic generator control system is used, disable the starting

circuit and/or disconnect the generator from its starting battery while performing

maintenance to prevent accidental starting.

IMPORTANT:

Baking Soda neutralizes lead-acid battery electrolyte.

Vinegar neutralizes NiCad and NiFe battery electrolyte.

Have a supply of either substance readily available if using these types of batteries.

Additional Information

6 900-0021-01-00 Rev B

Regulatory Specifications

See the Radian Series Inverter/Charger Operator’s Manual for all specifications and regulatory

information, including certifications.

Required Resources

This product is required to be installed according to pertinent safety codes and standards. If installed

in the United States, wiring practices must meet the requirements of the National Electrical Code

(NEC). If installed in Canada, wiring practices must meet the requirements of the Canadian

Electrical Code.

 National Electrical Code (NEC)/NFPA 70, Current Edition

 Canadian Electrical Code, C22.1, Current Edition

Additional Resources

The following are references which may be used when installing this equipment. Depending on the

nature of the installation, it may be highly recommended to consult any or all of these resources.

 National Electrical Code (NEC)/NFPA 70 Handbook, Current Edition

 UL 1741, Current Edition, Static Inverter and Charge Controllers for Use in Photovoltaic Power Systems

 International Building Code (IBC), Current Edition

 Photovoltaic Power Systems and the 2005 National Electrical Code: Suggested Practices

Additional Information

900-0021-01-00 Rev B 7

Recycling Information

IMPORTANT: Recycle Electronics and Batteries

Batteries are considered hazardous waste and must be recycled according to

local jurisdiction. Inverters and other electronics contain metals and plastics

that should also be recycled. The following web sites and phone numbers

provide additional information for recycling electronic products and batteries.

Earth 911, USA

Web site: www.Earth911.com

Address: 14646 N. Kierland Blvd., Suite 100

Scottsdale, AZ 85254

Phone: +1.480.337.3025 (direct)

Environmental Protection Agency, USA

Web site: www.epa.gov/recyclecity/

Email: [email protected]

Phone: +1.415.947.8000

(Monday –Friday 8:00 AM to 12:00 PM and 1:00 PM to 4:00 PM PST)

Keep America Beautiful, USA

Web site: www.kab.org/

Email: info@kab.org

Address: 1010 Washington Boulevard

Stamford, CT 06901

Phone: +1.203.659.3000 (Main number)

Fax: +1.203.659.3001

OurEarth.org, USA

There is a place on the website for contacting OurEarth.org using email. No direct email address

is provided.

Web site: http://www.ourearth.org

Address: P.O. Box 62133

Durham, NC 27715

Phone: +1.410.878.6485

National Institute of Recyclers, Mexico

Web site: http://www.inare.org.mx/

Email: a57841279@prodigy.net.mx, marga[email protected]

Phone: +1.55.57.85.9160

Fax: +1.55.57.84.1279

Additional Information

8 900-0021-01-00 Rev B

Natural Resources Canada

Address: 580 Booth, Ottawa, ON K1A 0E8

Web site: http://www.nrcan-rncan.gc.ca/mms-smm/busi-indu/rec-rec-eng.htm

Phone: +1.613.995.0947

TTY: +1.613.996.4397

(Phone and TTY: Monday to Friday, 8:30 a.m. to 4:30 p.m. ET)

Office of Waste Management, Canada

Web site: http://www.portaec.net/library/recycling/recycling_in_canada.html

Address: Office of Waste Management

Conservation and Protection

Environment Canada

Ottawa, Ontaro K1A 0H3

Phone: +1.819.997.2800

EuroRecycle.net, Europe

The following website provides general information about recycling in Europe. It also provides a list of

companies and organizations that provide recycling information or assistance.

Web site: http://euro.recycle.net

E-mail: http://euro.recycle.net/cgi-bin/feedback1.cgi?w=27

(This is an online form providing a means to contact the owners of the website.)

900-0021-01-00 Rev B 9

Table of Contents

Important Safety Instructions ........................................................................ 1

Audience ................................................................................................................................................................................. 1

Symbols Used ........................................................................................................................................................................ 1

Definitions ............................................................................................................................................................................... 2

General Safety ....................................................................................................................................................................... 3

Personal Safety ...................................................................................................................................................................... 3

Inverter Safety ....................................................................................................................................................................... 4

Battery Safety ......................................................................................................................................................................... 5

Regulatory Specifications .................................................................................................................................................. 6

Required Resources ............................................................................................................................................................. 6

Additional Resources .......................................................................................................................................................... 6

Recycling Information ........................................................................................................................................................ 7

Introduction ............................................................................................... 11

Welcome to OutBack Power Technologies .............................................................................................................. 11

Components and Accessories ...................................................................................................................................... 12

Planning .................................................................................................... 13

Applications ........................................................................................................................................................................ 13

Renewable Energy ............................................................................................................................................................ 14

Battery Bank ........................................................................................................................................................................ 14

Generator ............................................................................................................................................................................. 15

Maintenance Bypass Switching ................................................................................................................................... 16

Installation ................................................................................................. 17

Location and Environmental Requirements ............................................................................................................ 17

Dimensions .......................................................................................................................................................................... 17

Tools Required .................................................................................................................................................................... 18

Mounting .............................................................................................................................................................................. 18

Accessory Mounting .......................................................................................................................................................................... 20

Removing Front Cover .................................................................................................................................................... 21

Terminals and Ports .......................................................................................................................................................... 22

Grounding ............................................................................................................................................................................ 24

DC Wiring ............................................................................................................................................................................. 25

AC Wiring.............................................................................................................................................................................. 26

AC Sources ............................................................................................................................................................................................. 27

Accessory Wiring ............................................................................................................................................................... 28

AUX Wiring .......................................................................................................................................................................... 29

Generator Control) ............................................................................................................................................................................. 31

Single-Inverter AC Installations .................................................................................................................................... 34

Multiple-Inverter AC Installations (Stacking) ........................................................................................................... 35

Functional Test ................................................................................................................................................................... 38

Index ......................................................................................................... 39

Table of Contents

10 900-0021-01-00 Rev B

List of Tables

Table 1 Terms and Definitions ................................................................................................................... 2

Table 2 Components and Accessories .................................................................................................. 12

Table 3 Ground Conductor Size and Torque Requirements .......................................................... 24

Table 4 DC Conductor Size and Torque Requirements ................................................................... 25

List of Figures

Figure 1 GS8048 Inverter/Charger ........................................................................................................... 11

Figure 2 Radian Inverter and Accessories ............................................................................................. 12

Figure 3 Applications (Example) ............................................................................................................... 13

Figure 4 Bypass Switching .......................................................................................................................... 16

Figure 5 Bypass Switching for Multiple Inverters ............................................................................... 16

Figure 6 Dimensions ..................................................................................................................................... 17

Figure 7 Installing the Mounting Plate ................................................................................................... 18

Figure 8 Mounting the Inverter ................................................................................................................ 19

Figure 9 Mounting for System Components ........................................................................................ 20

Figure 10 Cover Screws .................................................................................................................................. 21

Figure 11 DC Terminals, Ribbon Cables, and Auxiliary Terminals ................................................... 22

Figure 12 AC Terminals, Ports, and Ground Bus .................................................................................... 23

Figure 13 Chassis Ground TBB ..................................................................................................................... 24

Figure 14 DC Cable Hardware (underside of inverter) ........................................................................ 25

Figure 15 AC Terminals .................................................................................................................................. 26

Figure 16 AC Sources ...................................................................................................................................... 27

Figure 17 Accessory Connections .............................................................................................................. 28

Figure 18 ON/OFF Jumper and Connections.......................................................................................... 28

Figure 19 AUX Connections for Vent Fan (Example)............................................................................ 29

Figure 20 AUX Connections for Diversion (Example) .......................................................................... 30

Figure 21 Two-Wire Generator Start (RELAY AUX)................................................................................ 31

Figure 22 Two-Wire Generator Start (12V AUX) ..................................................................................... 32

Figure 23 Three-Wire Generator Start (Example) .................................................................................. 33

Figure 24 Single-Inverter Wiring ................................................................................................................. 34

Figure 25 OutBack HUB4 and MATE3 ....................................................................................................... 35

Figure 26 Example of Parallel Stacking Arrangement (Three Inverters)........................................ 36

Figure 27 Parallel Wiring ................................................................................................................................ 37

900-0021-01-00 Rev B 11

Introduction

Welcome to OutBack Power Technologies

Thank you for purchasing the OutBack Radian Series Inverter/Charger. This product offers a complete

power conversion system between batteries and AC power. It can provide backup power, sell power

back to the utility grid, or provide complete stand-alone off-grid service.

Figure 1 GS8048 Inverter/Charger

IMPORTANT:

This product is not compatible with the OutBack MATE or MATE2 System Display and

Controller. Use of these products is not supported with the Radian Series.



Mounts easily with supplied mounting plate.



All terminals exit at the bottom of the inverter.

This allows the installer to use a single distribution

box. The GS Load Center (GSLC) is specifically

designed for this purpose and is sold separately.



Uses spring-based AC terminals instead of

screw-based terminals. This eliminates torque

requirements and periodic re-tightening.



Uses the MATE3 System Display and Controller

(sold separately) for user interface.



Features versatile mounting locations for the

MATE3, HUB, and FLEXmax products, as well as

the GSLC.



The venting on the cover allows mounting of

multiple Radian inverter/chargers side by side

with zero clearance required between them.



Up to 10 Radian Series Inverter/Chargers can be

stacked together.

Introduction

12 900-0021-01-00 Rev B

Components and Accessories

Table 2 Components and Accessories

Included in Box

Radian Series Installation Manual

RTS (Remote Temperature Sensor)

Radian Series Operator’s Manual

Hardware Kit

Mounting Bracket

Optional Components for Attachment to Radian Inverter

MATE3 System Display and Controller

FLEXmax 60 or FLEXmax 80 Charge Controller

FW-MB3 (MATE3 bracket)

FW-CCB or FW-CCB2 (charge controller brackets)

GSLC, GSLC175-120/240, or GSLC-PV-120-/240

(GS Load Centers)

OutBack HUB4 or HUB10

Figure 2 Radian Inverter and Accessories

GSLC

MATE3

HUB

FLEXmax

Charge Controllers

900-0021-01-00 Rev B 13

Planning

Applications

The Radian Series Inverter/Charger is intended for both grid-interactive and off-grid applications.

These inverters are designed to use a battery bank to store energy. They can work in conjunction with

photovoltaic (PV) panels to harvest solar energy, as well as wind turbines and other renewable

sources. These sources charge the battery, which in turn is used by the inverter.

Figure 3 Applications (Example)

The Radian inverter has six modes of operation. Each mode has functions and priorities that are

intended for a designated application. Each of the Radian’s two AC inputs can be set to a different

operating mode, so that different applications can be supported.

NOTE

: See the Radian Series Inverter/Charger Operator’s Manual for additional information on these

modes, including the benefits of using each mode.



Generator

: This mode is intended for a wide range of AC sources, including generators with a rough or

imperfect AC waveform. The Radian will charge from the generator even when the generator is undersized

or substandard.



Support

: This mode is intended for systems that use the utility grid or a generator. AC source size, wiring, or

other limitations may require temporary assistance to run very large loads. The Radian adds inverter and

battery power to the AC source to ensure that the loads receive the power they require.



Grid Tied

: This mode is intended for grid-interactive systems. When renewable energy sources charge the

batteries above a selected “target” voltage, the Radian inverter will send the excess energy to any loads. If

the loads do not use all the excess energy, then the Radian will return that energy to the utility grid.



UPS

(Uninterruptible Power Supply): This mode is intended for systems whose main focus is to maintain

power to the loads without any interruption during a transfer to, or from, the AC input. The speed of

Planning

14 900-0021-01-00 Rev B

response in this mode has been increased so that if the AC input power is disconnected or a scheduled

disconnect occurs the response time will be minimized.



Backup

: This mode is intended for systems that have the utility grid available. This source will flow through

the Radian inverter to power the loads unless utility power is lost. If utility grid power is lost, then the Radian

inverter will supply energy to the loads from the battery bank until the power is back online.



Minigrid

: This mode is intended for systems that have the utility grid as an input and a sizable amount of

renewable energy production. The system will run off the renewable energy production until the battery

voltage falls to a specified low level. When this occurs, the Radian inverter will connect to the utility grid,

which will power the loads. The Radian inverter will disconnect from the utility grid when the batteries are

sufficiently recharged.

Renewable Energy

The Radian Series Inverter/Charger cannot connect directly to photovoltaic arrays, wind turbines, or

other renewable sources. The batteries are the primary source of power. However, if these sources

are used to charge the batteries, the inverter can use their energy by drawing it from the batteries.

The renewable source is always treated as a battery charger, even if all of its power is used

immediately. The renewable source must have a charge controller or some way to prevent

overcharging. OutBack Power’s FLEXmax family of charge controllers can be used for this purpose, as

can other products.

The GSLC will receive the mechanical and electrical connections for up to two FLEXmax charge

controllers. It can receive the electrical connections for two FLEXmax Extreme charge controllers.

Battery Bank

When planning a battery bank, consider the following:



Cables:

Recommendations for battery cable size and length are shown on page 25. The maximum length

will determine the placement of the battery bank. Other local codes or regulations may apply and may take

priority over OutBack recommendations.



Battery Type:

The Radian inverter/charger works best with lead-chemistry batteries intended for deep

discharge. These include batteries for marine, golf-cart, and forklift applications. They also include gel-cell

batteries and absorbed glass-mat (AGM) batteries. OutBack Power recommends the use of batteries

designed specifically for renewable energy applications. Automotive batteries are strongly discouraged and

will have a short life if used in inverter applications. Nickel-based batteries are discouraged due to

limitations in the Radian charger. Lithium-based batteries and other advanced battery technologies may

require special considerations. Please contact OutBack Technical Support at

+1.360.618.4363

before

implementing advanced battery technologies.



The Radian inverter/charger is designed to work with a 48-volt battery bank. Before constructing a battery

bank, confirm the nominal voltage of individual batteries.



Bank Size:

In backup or off- grid applications, the battery bank size should be calculated based on

expected loads and run time.

~ To prevent the inverter’s charger from overcharging, the minimum recommended battery bank size is

350 amp-hours for every Radian inverter/charger installed on the system.

~ If other charging devices are present, the minimum bank size should be determined by adding the

inverter(s) charge rate to any other chargers and multiplying the result by five. Example: If the system’s

combined charge rate was 160 Adc, the minimum battery bank size should be 800 amp-hours.



Systems intended to bridge short-term outages can use smaller battery banks. In these cases, the bank can

be as low as 200 amp-hours per inverter. However, the charge rate must be decreased to half the inverter’s

maximum using the MATE3. (See the MATE3 manual.) One of the following conditions must also be true.

~ The system is equipped with a backup generator that is programmed for automatic start, or

Planning

900-0021-01-00 Rev B 15

~ Typical grid loss is 30 minutes or less, or

~ The loads are less than 2 kW.

NOTE: If support time or load size are disproportionate to the bank size, they will cause inverter shutdown

due to low battery voltage after a short time. These conditions could be detrimental to the life of a small

battery bank. If this is true, the recommendations from the previous page apply instead.



Charger Settings and Maintenance:

A vented enclosure for the battery bank may be required by electric

code and is recommended in most cases for safety reasons. It may be necessary to use a fan to ventilate the

battery enclosure. (See the Operator’s Manual for vent fan applications.)



Batteries must be regularly maintained according to the instructions of the battery manufacturer.

Generator

The Radian inverter/charger has specific connections for a “split-phase” generator. It can work with

any generator that delivers clean 120/240 Vac at 60 Hz. This product cannot work with a single-phase

or three-phase generator.



The Radian inverter/charger can provide a start signal to control an automatic start generator. If automatic

generator starting is required, the generator must be an electric-start model with automatic choke and

two-wire start capability. (See page 30.) For other configurations, additional equipment may be required.



In all cases, the inverter may need to be programmed using the MATE3 according to the specifications of the

generator and the requirements of the system. (See the Radian Series Inverter/Charger Operator’s Manual

and the MATE3 Owner’s Manual.) Parameters to be programmed may include generator size, automatic

starting requirements, and potential fluctuations in generator AC voltage.

Generator Sizing

A generator should be sized to provide enough power for all the loads and the battery charger.



Available generator power may be limited by ratings for circuit breakers and/or generator connectors. The

maximum allowed AC circuit breaker size is 50 Aac per Radian inverter/charger.



The generator must be able to provide current to all inverters. Minimum generator wattage

is usually

recommended to be twice the wattage of the inverter system. Many generators may not be able to

maintain AC voltage or frequency for long periods of time if they are loaded more than 80% of rated

capacity.



A generator that is to be installed in a building should not have a bond between the neutral and ground

connections. Installations in North America are expected to bond the neutral and ground at the main

electrical panel.

This is the wattage value after de-ratings for peak versus continuous power, for load power factor considerations, for fuel

type, for altitude, and for ambient temperature.

IMPORTANT:

Battery charger settings need to be correct for a given battery type. Always follow

battery manufacturer recommendations. Making incorrect settings, or leaving them at

factory default settings, may cause the batteries to be undercharged or overcharged.

CAUTION: Hazard to Equipment

Batteries can emit vapors which are corrosive over long periods of time. Installing the

inverter in the battery compartment may cause corrosion which is not covered by the

product warranty. (Sealed batteries may be an exception.)

Planning

16 900-0021-01-00 Rev B

Maintenance Bypass Switching

Inverter systems are often equipped with AC maintenance bypass switches or interlocks. If the

inverter system ever needs to be shut down or removed, the AC sources and loads must be

disconnected. A bypass device allows the AC source to deliver power directly to the loads, bypassing

the inverter. This can minimize disruption to the system and avoids the need for extensive rewiring.

Figure 4 Bypass Switching

The GSLC (see page 12) can be equipped with bypass circuit breakers for this purpose. However, if

multiple Radian inverters are stacked in a single system, then the bypass function must be

simultaneous for all inverters. The GSLC bypass kits operate independently, not simultaneously, and

should not be installed in this kind of application. Both manual and automatic double-pole,

double-throw bypass switches are commonly available in a range of sizes and options. These are

highly recommended for systems with more than a single inverter.

WARNING: Shock Hazard or Equipment Damage

Using independent bypass devices on multiple inverters can result in power being routed

to inappropriate places. This could create an electric shock hazard or damage the

equipment.

Figure 5 Bypass Switching for Multiple Inverters

AC Source

AC Loads

GSLC Bypass

Inoperative

Radian

Inverter

Input Wiring

Output Wiring

AC Source

AC Loads

Output Wiring

Inactive Radian Inverters

Input Wiring

GSLC Bypass Devices

(not to be used)

External Bypass Device

900-0021-01-00 Rev B 17

Installation

Location and Environmental Requirements

Radian Series Inverter/Chargers must be located in a weather-proof enclosure or enclosed area. These

inverters are not designed for exposure to water or excessive wind-blown dust and debris.



The Radian inverter must be wall-mounted in an upright position. The inverter is not approved for

mounting in any other position or orientation.



Recommended minimum clearance is 2 to 4 inches (5 to 10 cm) for the front and top of the inverter.



The sides and bottom may be enclosed or obscured with no restriction when mounting accessory devices or

one other Radian Series Inverter/Charger. If more than two Radian inverters are installed side by side with

the GSLC, the inverters should be separated by at least 0.9 inches (2.3 cm) to accommodate the GSLC doors.



The Radian inverter will function best if operated in a temperature range of 32°F to 77°F (–20°C to 25°C). At

temperatures up to 122°F (50°C), all inverter components meet their specifications, but the inverter’s power

is derated. It can function in environments as cold as –40°F (–40°C) and as warm as 140°F (60°C), but it may

not meet all component specifications. This temperature range also applies to storage.



The specifications are listed in the Radian Series Inverter/Charger Operator’s Manual.

Dimensions

Figure 6 Dimensions

Enclosure Height

28” (71.1 cm)

Width 16” (40.6 cm)

Depth

8.75” (22 cm)

Enclosure

Height with

Flange

29.13”

4 cm)

Installation

18 900-0021-01-00 Rev B

Tools Required

The following tools may be required for this installation:



Wire cutters/strippers



Wrench and socket sets; should include torque and ratchet

wrenches; also reversible (stubby) wrenches for narrow access

Mounting



Two or more people may be needed to install the Radian inverter/charger due to its weight.



Mount and secure each component before attaching any wiring. The bottom of the inverter must be

enclosed to meet NEC requirements. The GS Load Center was specifically designed for this purpose.



Avoid large air gaps behind the Radian inverter/charger and its mounting plate. These can result in louder

mechanical noise during heavy inverting or charging. Mount the plate on a flat, solid mounting surface.

The Radian inverter/charger comes equipped with a mounting plate, as shown in Figure 7.

Figure 7 Installing the Mounting Plate

IMPORTANT:

Use correct fasteners to secure the mounting plate and the Radian inverter/charger to the

mounting surface. OutBack cannot be responsible for damage to the product if it is attached

with inadequate fasteners.

The Radian inverter is mounted using these

steps.

1. The mounting plate is to be screwed or

bolted directly to a solid mounting surface

such as wall studs. (See Figure 7.) Lag

screws are provided for this purpose.

~ The plate is designed to mount on wall

studs with a spacing of 16” (40.6 cm).

If the studs have a different spacing,

plywood or similar material should be

installed over the studs. This material

should be1/2” size or thicker. The

mounting plate can be installed on the

plywood surface.

~ If multiple Radian inverter/chargers are

being installed, all mounting plates

should be installed first. The inverters

can be mounted and secured one at a

time when this is done.

Continued on the next page…

16.0” (40.6 cm)

Mounting Plate

8.0” (20.3 cm

)

6.0” (15.2 cm

)

4.1”

(10.4 cm)

5.0”

(12.7 cm)



Long-nose pliers



DVM or Voltmeter



Insulated screwdriver set; should include

a #2 Phillips screwdriver 15-16” long

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OutBack Power Radian Series Installation guide

Brand: OutBack Power

Model: Radian Series

Category: Chassis components

Type: Installation guide

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OutBack Power Radian Series Installation guide

OutBack Power Radian Series Installation guide

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